Spade fork



FIG. 1 is a perspective view;

FIG. 2 is a rear view;

FIG. 3 is a left side view;

FIG. 4 is a top view;

FIG. 5 is a front view;

FIG. 6 is a right side view; and,

FIG. 7 is a bottom view. 

I claim the ornamental design for a spade fork, as shown and described. 